What Is External Digestion?
What Is External Digestion? External digestion is when the bacteria secretes digestive enzymes to break down the food outside of the “body” and then it sucks it up! What animals use extracellular digestion? Extracellular digestion is a form of digestion found in all saprobiontic annelids, crustaceans, arthropods, lichens and chordates, including vertebrates. Do animals have